when xi jinping was in the united states last january he specifically wanted to pay a visit to the pentagon, which he did. so it indicates that xi i is not necessary just to himself from this kind of relationship. you may even see a kind of value added and identifying with it. at the way that china is trying to improve its advantage, if you will, is to present itself as a much more credible force in this context. now, with -- would've xi jinping be prepared to risk a major downturn in the u.s.-china relationship for all the reasons have been noted? i doubt this very, very seriously. but china has its date certain kind of claims that could very well we configured the regional environment for years to come, or at least enables china in its own estimation to better protect and assert its interests. so the question for the longer-term is how does the united states choose to react and respond. this is among the operative questions it seems to me that the obama administration is going to face in coming years. thank you very much for your time. [applause] >> so my second role is to be a discussed